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UNITED STATES PATENT OFFICE.

J. STEVER, OF BRISTOL, CONNECTICUT.

ARRANGEMENT OF MEANS IN PENDULUlVI-PUMPS FOR SHIPS.

Specification of Letters Patent No. 15,395, dated July 22, 1856.

To all whom t may concern Be it known that I, J. STEVER, of Bristol, inthe county of Hartford and State of Connecticut, have invented a new andImproved Mode of Operating Ships Pumps; and I do hereby declare that thefollowing is a full, clear, and eXact description of the same, referencebeing had to t-he annexed drawings, making a part of this specification,in which- Figures 1 and 2 are side views of my improvement.

Similar letters of reference indicate corresponding parts in the twofigures.

My invention consists in attaching a series' of pumps to a frame whichis secured to a hollow vertical shaft which is allowed to turn freely inits bearings, the pumps communicating with t-he hollow shaft and havingweights or bobs connected by gearing and levers with their pistons sothat the pumps will be operated by the motion of the ship or vessel, thehollow shaft serving as the force and suction pipe as will be presentlyshown and described.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents a vertical hollow shaft which is secured within the hold ofa ship or vessel. This shaft is allowed to turn in its bearings and hasa frame B, attached to it. The frame B, is formed of two horizontalplates (a), (ce), through the centers of which the shaft A, passes, theplates being secured to the shaft and connected by strips or uprights(o), (b), one at each side of the plates.

To the lower plate (a), there are attached pumps, C, four are shown inthe drawings, one at each corner, but more or less may be used. Thelower ends of the cylinders of these pumps are connected with the hollowshaft A, by pipes D.

The lower end of the hollow shaft A is perforated and the upper end isfitted within the end of a horizontalpipe (c) which forms the upperbearing of the shaft.

E, represents the plungers of the pumps and F, the plunger rods. Theplunger rods of the two pumps at each side of the lower plate (a), areconnected with the ends of levers G, and the center of the levers G, areconnected by pivots (al), with the strips or uprights (b), To the centerof each lever Gr, there is attached a geared sector H. These sectors H,gear into sectors I, which are attached to the upper ends of verticalbars J, secured by pivots (c), to the strips or uprights (b), the bars Jbeing hung loosely on the pivots (c). yTo the lower ends of the bars J,weights K, are attached, one to each.

The lower ends of the cylinders of the pumps, C, communicate with theshaft A, by pipes L, the shaft A, having a partition (f) within itdirectly underneath the pipes L, so that the upper part of the shaft A,is a discharge o-r force pipe, and the lower part below the partition asuction pipe. The lower part of each cylinder has a valve in it directlyover its pipe D.

The operation of the pumps will be readily understood. The frame B, andshaft A, will move or be inclined of course corresponding to themovement or inclinations of the ship or vessel and the sectors I, willbe moved by the swing of the weights K, and the levers, Gr, and theplungers E, will be operated the bilge water being drawn up through thelower end of the shaft A, into the pipes D, as the plungers rise andforced through the pipes L, into the shaft A, above the partition (f)and out of the end of the pipe And as the shaft A, turns in its bearingsas previously stated it will be seen that the shaft A and frame B, `willturn and consequently the direction of the movement or swing of theweights K, will always be in the same plane with the movement of theship or vessel, so that the pumps will be operated whether the ship isrolling from side to side or pitching fore and aft. Air pumps may beoperated in the same manner and at the same time by attaching them tothe frame B, and having suitable pipes connected to them so that a shipor vessel may be ventilated by the same device. y

Having thus dcribed my invention what I claim as new and desire tosecure by Letters Patent is- Attaching a series of pumps, C, to a hollowshaft A, which is allowed to turnv J. STEVER.

Witnesses:

JAMES F. BUCKLEY, WM. TUscH.

